Klaus wrote:
The question is can the total PID count be reduced when VDR is idle, or is there an assumption that a channel uses fewer than 4 PID's in calculating how many to leave spare for recordings (if that's how it works)?
VDR doesn't do any calculations regarding the number of PID filters. It just assumes that there will be enough of them ;-)
You might want to try VDR 1.7.14, which saves a few PID filters. Here's what you could try in VDR 1.6.0-2:
in eit.c exchange the code after the line "// --- cEitFilter -----------" with that from VDR 1.7.14. You may need to leave out the "disable until" part. That saves two PID filters.
disable setting the system time from the transponder (saves another filter in eit.c)
Klaus
Great work, thanks Klaus - I patched version 1.6 as you suggest, leaving out the "disable until" bit. The Freecom USB receiver will now do at least 2 channels simultaneously, sometimes 3. When idle, 6 PID's are now in use normally instead of 8 (I wasn't setting system time - using NTP).
Are you aware of anywhere the PID capacity of receivers is published - it's not in http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices for example? - it would be good to publish, so buyers can select better hardware
cheers Richard
On Monday 07 June 2010 00:19:45 Richard F wrote:
Are you aware of anywhere the PID capacity of receivers is published - it's not in http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices for example?
- it would be good to publish, so buyers can select better hardware
Since full speed usb devices have a 12Mbps bandwidth limit (on paper anyway, a bit optimistic for real usable data throughput) I'm not exactly convinced it really matters if you could get more pids out of it. You might (sometimes) get away with recording 3 channels on that but I certainly wouldn't count on it.
If you get a high speed device it probably doesn't have a forced filter to begin with.
On 06/06/10 23:19, Richard F wrote:
... Are you aware of anywhere the PID capacity of receivers is published - it's not in http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices for example?
- it would be good to publish, so buyers can select better hardware
Sorry, I don't have that kind of information.
Klaus
On 13 June 2010 12:05, Klaus Schmidinger Klaus.Schmidinger@tvdr.de wrote:
On 06/06/10 23:19, Richard F wrote:
... Are you aware of anywhere the PID capacity of receivers is published - it's not in http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices for example?
- it would be good to publish, so buyers can select better hardware
Sorry, I don't have that kind of information.
Klaus
Surely an option here would be to then use a single "allow all" filter, and then use software to filter after that. I think the PID 0x2000 is the "permit all" filter. This cheap DVB card could then still be made to work with mythtv.
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James Courtier-Dutton -
Jukka Tastula -
Klaus Schmidinger -
Richard F